亚老哥尔1248, Aroclor 1248,50 ppm w/w in Transformer oil

6级校准检查标准, Working Level 6 Calibration Check ,Varied conc. in Isooctane

亚老哥尔1254, Aroclor 1254,1000 μg/mL in Hexane

Aroclor 1260

6级校准检查标准, Working Level 6 Calibration Check ,Varied conc. in Isooctane

亚老哥儿1262, Aroclor 1262,35 μg/mL in MeOH

亚老哥尔1268, Aroclor 1268,100 μg/mL in Hexane

亚老哥尔1268, Aroclor 1268,1000 μg/mL in Hexane

多氯联苯混标#2, PCB Congeners Mix #2 (Canadian RM) ,Varied conc. in Isooctane

中型及重型石油馏分, Brownfield Regulation for Medium &Heavy Petroleum Fraction